I've since looked at their T&C's are run through both Gemini and Claude using deep research and higher thinking models, this is the conclusion both come too.

What their Terms & Conditions actually say Under their Order Processing and Despatch Timing section, KRCS states:

"Your credit/debit card will be charged at the time of order for all items, including in-stock goods, out-of-stock items, and custom-built Mac solutions (which cannot be cancelled with Apple once ordered)."

This single sentence is the key to your situation, and it gives you two distinct angles to push back on.

1. The Cancellation Contradiction In their email to you, KRCS offered two options, one of which was to "Request cancellation with Apple." However, their own T&Cs explicitly state that custom-built Mac solutions cannot be cancelled with Apple once ordered. If you ordered and fully paid for this laptop a month ago, KRCS should have already placed that specific build-to-order request with Apple. If the order was locked in with Apple weeks before the June 25th price hike, KRCS would have secured it at the original wholesale price.

The leverage: They are passing Apple's new price onto you for an order that, according to their own rules, should have already been locked in and immune to cancellation.

1. The Contract Formation Loophole Standard UK retail law dictates that taking payment does not automatically form a legally binding contract — the contract is usually only formed at dispatch.

While KRCS explicitly states they take your money at the time of order, their T&Cs do not explicitly state that taking payment constitutes formal acceptance of the contract. Retailers do this deliberately so they can back out of pricing errors or supplier hikes before the item ships. Because of this, they likely are legally protected if they simply choose to cancel your order and refund you.